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/*
drivers/net/tulip/timer.c
Maintained by Jeff Garzik <jgarzik@mandrakesoft.com>
Copyright 2000,2001 The Linux Kernel Team
Written/copyright 1994-2001 by Donald Becker.
This software may be used and distributed according to the terms
of the GNU General Public License, incorporated herein by reference.
Please refer to Documentation/DocBook/tulip.{pdf,ps,html}
for more information on this driver, or visit the project
Web page at http://sourceforge.net/projects/tulip/
*/
#include "tulip.h"
void tulip_timer(unsigned long data)
{
struct net_device *dev = (struct net_device *)data;
struct tulip_private *tp = (struct tulip_private *)dev->priv;
long ioaddr = dev->base_addr;
u32 csr12 = inl(ioaddr + CSR12);
int next_tick = 2*HZ;
if (tulip_debug > 2) {
printk(KERN_DEBUG "%s: Media selection tick, %s, status %8.8x mode"
" %8.8x SIA %8.8x %8.8x %8.8x %8.8x.\n",
dev->name, medianame[dev->if_port], inl(ioaddr + CSR5),
inl(ioaddr + CSR6), csr12, inl(ioaddr + CSR13),
inl(ioaddr + CSR14), inl(ioaddr + CSR15));
}
switch (tp->chip_id) {
case DC21040:
if (!tp->medialock && csr12 & 0x0002) { /* Network error */
printk(KERN_INFO "%s: No link beat found.\n",
dev->name);
dev->if_port = (dev->if_port == 2 ? 0 : 2);
tulip_select_media(dev, 0);
dev->trans_start = jiffies;
}
break;
case DC21041:
if (tulip_debug > 2)
printk(KERN_DEBUG "%s: 21041 media tick CSR12 %8.8x.\n",
dev->name, csr12);
if (tp->medialock) break;
switch (dev->if_port) {
case 0: case 3: case 4:
if (csr12 & 0x0004) { /*LnkFail */
/* 10baseT is dead. Check for activity on alternate port. */
tp->mediasense = 1;
if (csr12 & 0x0200)
dev->if_port = 2;
else
dev->if_port = 1;
printk(KERN_INFO "%s: No 21041 10baseT link beat, Media switched to %s.\n",
dev->name, medianame[dev->if_port]);
outl(0, ioaddr + CSR13); /* Reset */
outl(t21041_csr14[dev->if_port], ioaddr + CSR14);
outl(t21041_csr15[dev->if_port], ioaddr + CSR15);
outl(t21041_csr13[dev->if_port], ioaddr + CSR13);
next_tick = 10*HZ; /* 2.4 sec. */
} else
next_tick = 30*HZ;
break;
case 1: /* 10base2 */
case 2: /* AUI */
if (csr12 & 0x0100) {
next_tick = (30*HZ); /* 30 sec. */
tp->mediasense = 0;
} else if ((csr12 & 0x0004) == 0) {
printk(KERN_INFO "%s: 21041 media switched to 10baseT.\n",
dev->name);
dev->if_port = 0;
tulip_select_media(dev, 0);
next_tick = (24*HZ)/10; /* 2.4 sec. */
} else if (tp->mediasense || (csr12 & 0x0002)) {
dev->if_port = 3 - dev->if_port; /* Swap ports. */
tulip_select_media(dev, 0);
next_tick = 20*HZ;
} else {
next_tick = 20*HZ;
}
break;
}
break;
case DC21140:
case DC21142:
case MX98713:
case COMPEX9881:
case DM910X:
default: {
struct medialeaf *mleaf;
unsigned char *p;
if (tp->mtable == NULL) { /* No EEPROM info, use generic code. */
/* Not much that can be done.
Assume this a generic MII or SYM transceiver. */
next_tick = 60*HZ;
if (tulip_debug > 2)
printk(KERN_DEBUG "%s: network media monitor CSR6 %8.8x "
"CSR12 0x%2.2x.\n",
dev->name, inl(ioaddr + CSR6), csr12 & 0xff);
break;
}
mleaf = &tp->mtable->mleaf[tp->cur_index];
p = mleaf->leafdata;
switch (mleaf->type) {
case 0: case 4: {
/* Type 0 serial or 4 SYM transceiver. Check the link beat bit. */
int offset = mleaf->type == 4 ? 5 : 2;
s8 bitnum = p[offset];
if (p[offset+1] & 0x80) {
if (tulip_debug > 1)
printk(KERN_DEBUG"%s: Transceiver monitor tick "
"CSR12=%#2.2x, no media sense.\n",
dev->name, csr12);
if (mleaf->type == 4) {
if (mleaf->media == 3 && (csr12 & 0x02))
goto select_next_media;
}
break;
}
if (tulip_debug > 2)
printk(KERN_DEBUG "%s: Transceiver monitor tick: CSR12=%#2.2x"
" bit %d is %d, expecting %d.\n",
dev->name, csr12, (bitnum >> 1) & 7,
(csr12 & (1 << ((bitnum >> 1) & 7))) != 0,
(bitnum >= 0));
/* Check that the specified bit has the proper value. */
if ((bitnum < 0) !=
((csr12 & (1 << ((bitnum >> 1) & 7))) != 0)) {
if (tulip_debug > 2)
printk(KERN_DEBUG "%s: Link beat detected for %s.\n", dev->name,
medianame[mleaf->media & MEDIA_MASK]);
if ((p[2] & 0x61) == 0x01) /* Bogus Znyx board. */
goto actually_mii;
/* netif_carrier_on(dev); */
break;
}
/* netif_carrier_off(dev); */
if (tp->medialock)
break;
select_next_media:
if (--tp->cur_index < 0) {
/* We start again, but should instead look for default. */
tp->cur_index = tp->mtable->leafcount - 1;
}
dev->if_port = tp->mtable->mleaf[tp->cur_index].media;
if (tulip_media_cap[dev->if_port] & MediaIsFD)
goto select_next_media; /* Skip FD entries. */
if (tulip_debug > 1)
printk(KERN_DEBUG "%s: No link beat on media %s,"
" trying transceiver type %s.\n",
dev->name, medianame[mleaf->media & MEDIA_MASK],
medianame[tp->mtable->mleaf[tp->cur_index].media]);
tulip_select_media(dev, 0);
/* Restart the transmit process. */
tulip_restart_rxtx(tp);
next_tick = (24*HZ)/10;
break;
}
case 1: case 3: /* 21140, 21142 MII */
actually_mii:
if (tulip_check_duplex(dev) < 0)
{ /* netif_carrier_off(dev); */ }
else
{ /* netif_carrier_on(dev); */ }
next_tick = 60*HZ;
break;
case 2: /* 21142 serial block has no link beat. */
default:
break;
}
}
break;
}
/* mod_timer synchronizes us with potential add_timer calls
* from interrupts.
*/
mod_timer(&tp->timer, RUN_AT(next_tick));
}
void mxic_timer(unsigned long data)
{
struct net_device *dev = (struct net_device *)data;
struct tulip_private *tp = (struct tulip_private *)dev->priv;
long ioaddr = dev->base_addr;
int next_tick = 60*HZ;
if (tulip_debug > 3) {
printk(KERN_INFO"%s: MXIC negotiation status %8.8x.\n", dev->name,
inl(ioaddr + CSR12));
}
if (next_tick) {
mod_timer(&tp->timer, RUN_AT(next_tick));
}
}
void comet_timer(unsigned long data)
{
struct net_device *dev = (struct net_device *)data;
struct tulip_private *tp = (struct tulip_private *)dev->priv;
long ioaddr = dev->base_addr;
int next_tick = 60*HZ;
if (tulip_debug > 1)
printk(KERN_DEBUG "%s: Comet link status %4.4x partner capability "
"%4.4x.\n",
dev->name, inl(ioaddr + 0xB8), inl(ioaddr + 0xC8));
/* mod_timer synchronizes us with potential add_timer calls
* from interrupts.
*/
mod_timer(&tp->timer, RUN_AT(next_tick));
}
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